720208242 has 24 divisors (see below), whose sum is σ = 1680486444. Its totient is φ = 221602464.

The previous prime is 720208217. The next prime is 720208283. The reversal of 720208242 is 242802027.

720208242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 593848161 + 126360081 = 24369^2 + 11241^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1538673 + ... + 1539140.

Almost surely, 2^720208242 is an apocalyptic number.

720208242 is an abundant number, since it is smaller than the sum of its proper divisors (960278202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

720208242 is a wasteful number, since it uses less digits than its factorization.

720208242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3077834 (or 3077831 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 720208242 is about 26836.6958100285. The cubic root of 720208242 is about 896.3673499347.

The spelling of 720208242 in words is "seven hundred twenty million, two hundred eight thousand, two hundred forty-two".